sudo apt-get install autotrace
autotrace –output-file t.eps f.bmp

eps, ai, p2e, sk, svg, fig, emf, mif, er, dxf, epd, pdf, cgm, …, magick, meta, gmfa, meta, gmfb, plot, pnm, plot-pnm, pcl, plot-pcl, hpgl, plot-hpgl, tek, plot-tek, idraw, obj, tgif, gnuplot, svm, tk, gschem, pcbfill, pcb, pcb, pcbi, hpgl, pic, xml, noixml, tex, latex2e, m, mma, asy, mp, mpost, txt, text, kil, java2, java, java1, rpl, rib, lwo or dr2d can be used.